Building Projects: [Ubuntu] Unable to build projects if using Ubuntu IDE on Ubuntu LTS 24.04

[Emc1923]

Description

When building for newest Ubuntu LTS 24.04 any project will fail to build with the following error:

/bin/bash DONE (0)
/bin/bash -c 'unshare -mUprf sh -c '\''mount -o bind "$1" "$2/tmp/" && PATH="$PATH:/usr/local/sbin:/usr/sbin:/sbin" NO_STRIP=1 chroot "$2" /bin/sh -c "export PATH=/usr/bin:/bin:/tmp/squashfs-root/usr/bin && cd /tmp/ && linuxdeploy --appdir=AppDir/"'\''  -- /home/emvm2/GameMakerStudio2/vm/BLANK_GAME /opt/steam-runtime'
unshare: write failed /proc/self/uid_map: Operation not permitted


System.Exception: command 'unshare -mUprf sh -c 'mount -o bind "$1" "$2/tmp/" && PATH="$PATH:/usr/local/sbin:/usr/sbin:/sbin" NO_STRIP=1 chroot "$2" /bin/sh -c "export PATH=/usr/bin:/bin:/tmp/squashfs-root/usr/bin && cd /tmp/ && linuxdeploy --appdir=AppDir/"'  -- /home/emvm2/GameMakerStudio2/vm/BLANK_GAME /opt/steam-runtime' failed with exit status 1
   at Igor.LinuxBuilder.plink_async(String command, Boolean fail_on_error)
   at Igor.LinuxBuilder.BuildAppImage(String work_dir, String exe_path, String assets_zip_path, String projectName, Boolean package)
   at Igor.LinuxBuilder.Run()

Ubuntu24.04.txt

Expected Change

No response

Steps To Reproduce

1. Start GameMaker on Ubuntu 24.04
2. Create open any project
3. Attempt to run for Ubuntu VM/YYC
4. See the issue
   Ubuntu_package.zip

How reliably can you recreate this issue using your steps above?

Always

Which version of GameMaker are you reporting this issue for?

Beta IDE v2024.400.0.556 Beta Runtime v2024.400.0.571

Which operating system(s) are you seeing the problem on?

No response

Which platform(s) are you having trouble building this project for?

Ubuntu

Are you running GameMaker from inside your Steam library?

No

Contact Us Package/Logs Attached?

• I have attached my evidence

Sample Project Added?

• I have included a small sample project

[stuckie]

Issue seems to be Ubuntu changing security things slightly so that the calling bash environments must match for the share and unshare commands.
You cannot unshare from a different bash environment than originally created the share.

[yoyo-danielc]

Ubuntu has set up AppArmor in 24.04 so that it blocks use of user namespaces ("containers") by unprivileged users. There's not much we can do to get around this for the time being, but the restriction can be disabled system-wide with the following command:

sudo sysctl kernel.apparmor_restrict_unprivileged_userns=0

To make the change persistent, add kernel.apparmor_restrict_unprivileged_userns = 0 to /etc/sysctl.conf.

NOTE: This is removing a security restriction which Canonical felt the need to add to Ubuntu, so do it at your own risk. The rationale is here: https://discourse.ubuntu.com/t/spec-unprivileged-user-namespace-restrictions-via-apparmor-in-ubuntu-23-10/37626